Another thing I just thought of:
I don't necessarily "hate" them, but I really don't agree with the idea of the Big Mac as a point of principle. To me, the point of bread in a sandwich is to hold everything in between together. You wouldn't put an extra piece of bread in a double cheeseburger or use extra slices of bread to separate the individual components of a bacon, egg and cheese sandwich. I just don't understand why you would put an extra piece of bread in a Big Mac. In addition to making the sandwich marginally more expensive, the extra piece of bread gets in the way of the parts of the sandwich that matter (i.e. the meat). If you want more starch or carbs in your sandwich, you should be adding things like fries in the middle. It's just ludicrous to be adding more bread.